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			36 lines
		
	
	
		
			986 B
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			36 lines
		
	
	
		
			986 B
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
| // Copyright (C) 2016 the V8 project authors. All rights reserved.
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| // This code is governed by the BSD license found in the LICENSE file.
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| /*---
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| esid: sec-evaldeclarationinstantiation
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| description: Initialization of new global property
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| info: |
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|     [...]
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|     16. For each String vn in declaredVarNames, in list order do
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|         a. If varEnvRec is a global Environment Record, then
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|            i. Perform ? varEnvRec.CreateGlobalVarBinding(vn, true).
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|     [...]
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| 
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|     8.1.1.4.17 CreateGlobalVarBinding
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| 
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|     [...]
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|     5. Let extensible be ? IsExtensible(globalObject).
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|     6. If hasProperty is false and extensible is true, then
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|        a. Perform ? ObjRec.CreateMutableBinding(N, D).
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|        b. Perform ? ObjRec.InitializeBinding(N, undefined).
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|     [...]
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| includes: [propertyHelper.js]
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| ---*/
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| 
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| var initial = null;
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| 
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| (0, eval)('initial = x; var x = 9;');
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| 
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| verifyProperty(this, 'x', {
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|   value: 9,
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|   writable: true,
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|   enumerable: true,
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|   configurable: true,
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| });
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| 
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| assert.sameValue(initial, undefined);
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